Ok, I think you're not exactly grasping what I'm saying, and these comments belittling of the subwoofer I bought and box are getting a wee bit old. I have heard L7's with this amp, and lower powered ones (L5), they rattle the hell out of trunks, with just ONE, if I wire it directly up, it barely thumps more than a 200w STOCK KICKER subwoofer, please enlighten me as to how that is normal? You say get a better sub and amp, I have a great amplifier that is pushing out 930w RMS, and I have a L7, which is known for pure SPL, not SQ, but RATTLEING BASS, and you're telling me to get a new amp and sub? That's some legendary advice.